<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Application
 * @subpackage Resource
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Modules.php 18951 2009-11-12 16:26:19Z alexander $
 */

/**
 * Module bootstrapping resource
 *
 * @category   Zend
 * @package    Zend_Application
 * @subpackage Resource
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Application_Resource_Modules extends Zend_Application_Resource_ResourceAbstract
{
	/**
	 * @var ArrayObject
	 */
	protected $_bootstraps;

	/**
	 * Constructor
	 *
	 * @param  mixed $options
	 * @return void
	 */
	public function __construct($options = null)
	{
		$this->_bootstraps = new ArrayObject(array(), ArrayObject::ARRAY_AS_PROPS);
		parent::__construct($options);
	}

	/**
	 * Initialize modules
	 *
	 * @return array
	 * @throws Zend_Application_Resource_Exception When bootstrap class was not found
	 */
	public function init()
	{
		$bootstrap = $this->getBootstrap();
		$bootstrap->bootstrap('FrontController');
		$front = $bootstrap->getResource('FrontController');

		$modules = $front->getControllerDirectory();
		$default = $front->getDefaultModule();
		$curBootstrapClass = get_class($bootstrap);
		foreach ($modules as $module => $moduleDirectory) {
			$bootstrapClass = $this->_formatModuleName($module) . '_Bootstrap';
			if (!class_exists($bootstrapClass, false)) {
				$bootstrapPath  = dirname($moduleDirectory) . '/Bootstrap.php';
				if (file_exists($bootstrapPath)) {
					$eMsgTpl = 'Bootstrap file found for module "%s" but bootstrap class "%s" not found';
					include_once $bootstrapPath;
					if (($default != $module)
					&& !class_exists($bootstrapClass, false)
					) {
						throw new Zend_Application_Resource_Exception(sprintf(
						$eMsgTpl, $module, $bootstrapClass
						));
					} elseif ($default == $module) {
						if (!class_exists($bootstrapClass, false)) {
							$bootstrapClass = 'Bootstrap';
							if (!class_exists($bootstrapClass, false)) {
								throw new Zend_Application_Resource_Exception(sprintf(
								$eMsgTpl, $module, $bootstrapClass
								));
							}
						}
					}
				} else {
					continue;
				}
			}

			if ($bootstrapClass == $curBootstrapClass) {
				// If the found bootstrap class matches the one calling this
				// resource, don't re-execute.
				continue;
			}

			$moduleBootstrap = new $bootstrapClass($bootstrap);
			$moduleBootstrap->bootstrap();
			$this->_bootstraps[$module] = $moduleBootstrap;
		}

		return $this->_bootstraps;
	}

	/**
	 * Get bootstraps that have been run
	 *
	 * @return ArrayObject
	 */
	public function getExecutedBootstraps()
	{
		return $this->_bootstraps;
	}

	/**
	 * Format a module name to the module class prefix
	 *
	 * @param  string $name
	 * @return string
	 */
	protected function _formatModuleName($name)
	{
		$name = strtolower($name);
		$name = str_replace(array('-', '.'), ' ', $name);
		$name = ucwords($name);
		$name = str_replace(' ', '', $name);
		return $name;
	}
}
